You can't convert it to a string because unit names can be localized. When you use the Name To Text function it'll actually return the localized name for every player - which makes it a bit awkward since it mashes words from different languages into your own texts :/
Finally finding about some of the bots that are flooding the users online - bytespider apparently is a huge offender here - ignores robots.txt and comes in from a ton of different IPs
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.